RU2623656C1 - System of wireless transmission of signals on application of impact at fencing on sabers - Google Patents

Abstract

FIELD: radio engineering, communication.

SUBSTANCE: wireless signaling system for strikes at saber fencing contains: a receiving device and two transmitting devices. Each betrayer contains: a saber with sensors of chopping, cutting and piercing strokes, two transmitters and two antennas. The receiver includes: two antennas, two narrowband filters, two mixers, a local oscillator, two intermediate frequency signal amplifiers, two detectors, a circuit that records the coincidence of the edges of the impulse signals of the strikes applied, the first and second relay pairs, each relay has the input and output signals of the strikes, a control signal input and a normally closed contact, a circuit that detects the front of the first pulse signal of the strikes applied, has two inputs of signals of strikes applied and two cross outputs of the control signals, the third pair of relays, each of which has the input and output signals of the strikes applied, the input of the control signal, the normally open contact and the block contact, two electric buttons with normally closed contacts. In each channel, the antenna, filter, mixer, intermediate frequency amplifier, detector, one relay of each pair and the indicator are connected in series. The inputs of the circuit, which registers the coincidence of the edges of the pulse signals of the strikes, are connected to the outputs of the detectors, and the output of the control signal of this circuit is connected to the inputs of the control signals of the first pair of relays. The inputs of the circuit detecting the front of the first impulse signal of the strikes are connected to the outputs of the second relay pair, and the outputs of its control signals are cross-connected with the control inputs of the relay of the same pair. The contacts of the electric knobs are connected to the control outputs of the third relay pair.

EFFECT: electronic definition of the opponent, the first striker, recording of cutting and cutting strokes, simplification of the system design.

2 dwg

Description

The invention relates to techniques for sports equipment and is used to register stitching, cutting and chopping strikes in the defeat zones of rivals during fencing, during competitions and training, and determines the opponent to be the first to strike on the front of the pulse of his strike.

A well-known system of chopping and piercing strikes when fencing on imitators of edged weapons (utility model 133002 IPC 7 A63B 69/02). The system contains one or more display units and two or more cold weapon simulators, each display unit contains an electronic circuit, to the input of which a radio is connected, and a visual and / or sound display device is connected to the output. Each of the cold steel imitators contains an electronic circuit, to the input of which one or several sensors are connected for separate registration of the cutting and piercing blows inflicted by the weapon, a radio transmitter is connected to the output.

The system has a complex structure, the transmission of signals about striking is carried out by wires that hamper the movement of athletes, the rival is the first to strike, it is determined visually - by eye, which is the disadvantages of the prototype.

Common features of the analogue and invention: two weapon simulators with shock sensors, two pricking and chopping sensors, and two shock indicators.

A known system for wireless transmission of signals about the application of injections when fencing swords, adopted as a prototype (utility model 115137 IPC 7 H04H 60/76). This system contains a referee recorder, a receiving device, two individual devices, two weapons with sensor tips and an electrically conductive fencing track. A separate receiving device is made for each individual device. The individual apparatus is equipped with a generator that marks the athlete’s arms and connected to the output of the control device, is equipped with a signal detector of the generator that marks the opponent’s arms, connected to the probe tip and the input of the control device, to the other output of which the radio transmitter is connected. Each receiving device contains a radio receiver connected to the input of an electronic circuit provided with an output relay circuit connected to one of the signal inputs of the referee recorder. A generator is attached to the fencing track, marking the track with signals for a detector connected to the weapon sensor and the input of the control device.

The prototype cannot register cutting and chopping blows, it has a complex system of marking opponents, the opponent who first hit is determined visually - by eye, which is the disadvantages of the prototype.

Common features of the prototype and invention: two weapons simulators with contact piercing sensors, two radio transmitters, a receiving device and two indicators of strikes.

The technical result of the invention is the electronic determination of the opponent who first struck, registering chopping, cutting strokes, simplifying the design of the system.

The invention is illustrated by drawings.

In FIG. 1 shows a block diagram of a transmitting device of the system on which the blocks and devices are digitized: 1 - saber; 2 - sensor chopping and cutting impacts; 3 - stabbing sensor; 4 - electrical connector; 5 - a radio transmitter of high frequency (HF) signals; 6 - antenna.

In FIG. 2 shows a block diagram of a receiving device, on which the blocks and devices are digitized: 7 - a receiving antenna of RF signals of frequency F1; 8 - receiving antenna of the RF signal of frequency F2; 9 and 10 - narrow-band filters of frequencies F1 and F2; 11 and 12 - frequency mixers; 13 - local oscillator; 14 and 15 - amplifiers of signals of intermediate frequency (UPCH); 16 and 17 are detectors; 18 is a diagram (SS) recording the coincidence of the fronts of the pulse signals of strikes; 19 and 20 - the first pair of relay P1; 21 and 22 - the second pair of relay P2; 23 - circuit (SNF), triggered from the front of the first pulse signal of strikes in two channels of the receiving device; 24 and 25 - the third pair of relay P3; 26 and 27 - electric buttons 28 and 29.

The implementation of the blocks and devices of the system and their functional purpose

Saber 1 has a handle, blade and guard. The handle may be made of metal or dielectric. The blade blade is made of steel with a cavity. In the cavity, a sensor of 2 chopping, cutting strokes is installed. At the point of the saber, a stabbing sensor is fixed 3. In the cavity of the blade, wires pass through the parallel connected outputs of the sensors.

Sensors 2 and 3 are designed to turn on the radio transmitters 6 when striking opponents.

Sensor 2 detects chopping, cutting impacts and can be performed, for example, in the form of two cantilever beams with weights that form a normally open (BO) contact with the inner surface of the blade (Aut. St. USSR No. 1747102), which is installed in the cavity of the saber 2/3 of its length from the guard.

Sensor 3 detects piercing strikes and can be performed, for example, in the form of a tip of a saber tip with a NO contact (RF Patent No. 2292933 for an invention).

An electrical connector 4 is mounted on the inside of the saber guard and is made with two sockets.

To determine the opponent who struck, radio transmitters electrically connected to the sabers operate at different frequencies F1 and F2. Each radio transmitter 5 contains a parallel-connected power supply, which is turned on by shock sensors 2 or 3 when striking an opponent in the area of the opponent’s equipment’s striking surface, or by giving a saber against a saber.

When striking opponents, the sensors include power sources of the radio transmitters 6 transmitting devices, which begin to instantly generate high-frequency (HF) signals with different frequencies until the contacts of the sensors open.

Antennas 6, 7 and 8 can be made whip. Antennas 6 are used for radiation of the HF electromagnetic field on the air, and antennas 7 and 8 are used to receive radiation from antennas 6.

Filters 9 and 10 are made narrow-band, each tuned to the frequency F1 or F2 of the RF signals inflicted by blows by different opponents. Filters provide separate reception of high-frequency shock signals, tagging opponents.

Using the signal of the local oscillator 13, the mixers 11 and 12 of the signal frequencies convert the high-frequency signals of the delivered shocks into intermediate-frequency (IF) signals, the output of the local oscillator 13 is connected to the local oscillator inputs of the mixers.

Detectors 16 and 17 are designed to convert two polar IF signals into unipolar signals.

The system contains three relay pairs: the first pair is 19 and 20; second pair 21 and 22; the third pair is 24 and 25. The signal from the strike delivered to the signal input of any relay includes it. The outputs of each relay are the outputs of the contact. The signal applied to the control input of the relay changes the normal position of its contact to the opposite: a normally closed (NC) contact opens, and a normally open (NO) contact closes.

In the first and second pairs of relays P1 and P2, the relays are of the same type and have an input and output of shock signals, a control input and one NC contact.

In the third pair, relays P3 have an input and output of signals from strikes, a control input, a NO contact and a block contact.

The circuit (CC) 18, which registers the coincidence of the fronts of the pulse signals of the strikes, has two inputs of the shock signals and one output of the control signal. The inputs of the SS 18 circuit are connected to the outputs of the detectors 16 and 17. When the edges of the signals coincide, the control signal arrives at the output of the SS 18 circuit, which is fed to the control inputs of the first pair of relays 19 and 20, their NC contacts open, the injection signals do not pass to the indicators 28 and 29 strikes and are not fixed.

The circuit (SNF) 23, triggered from the front of the first impulse signal of strikes, has two inputs and one output of the control signal. The inputs of the SNF circuit 23 are connected to the outputs of the second pair of relays 21 and 22, and its control outputs of the shock signals are cross-connected with the control inputs of the same relays. If the edges of the signals of the two strikes do not coincide, the first time signal arriving, for example, from the output of the relay 21 to the input of the SNF circuit 23 opens the NC contact of the relay 22 of the other channel, the signal of this channel is turned off. The front of the first impulse signal of the strike passes to the signal input of the relay 24 of the third pair and closes the NO contact and the block contact. The NO contact of the relay 24 turns on the signal indicator 29. The block contact holds the NO contact of the relay 24 in the closed position and when the signal at its input disappears.

The power buttons 26 and 27 are made with NC contacts and are designed to turn off shock indicators 28 and 29. When the power button is pressed, its NC contact opens and disconnects the relay 24 contact block, which kept the NO relay contact in the closed position.

Description of the system block diagram

The system for recording blows during fencing on saber simulators contains a receiving device and two transmitting devices.

The transmitting devices emit RF signals of different frequencies, the receiving device has two channels for converting shock signals of these frequencies, respectively. Each transmitting device includes: saber 1, two shock sensors 2 and 3, which have normally open contacts, an electrical connector 4, a radio transmitter 5 and an antenna 6 (Fig. 1).

The outputs of the sensors 2 and 3 are connected in parallel and connected to the input terminals of connector 4, the output terminals of which are connected to the power switch of the radio transmitter 5, the output of which is connected to the input of the transmitting antenna 6.

The receiving device (Fig. 2) contains:

- two antennas 7 and 8, two narrow-band filters 9 and 10, two mixers 11 or 12, local oscillator 13, two amplifiers of intermediate frequency signals 14 and 15, two detectors 16 and 17;

- a circuit (SS) 18, registering the coincidence of the edges of the pulse signals of strikes, a pair of the first 19 and 20 and a pair of second 21 and 22 relays, each has an input and output of shock signals, an input of the control signal and NC contact;

- circuit (SNF) 23 triggered from the front of the pulse of the signal of the first strike, the circuit has two inputs of signals of strikes and two outputs of control signals;

- the third pair of relays 24 and 25, each has an input and output of signals of strikes, control signal input, NO contact and block contact;

- a pair of power buttons 26 and 27 with normally closed contacts;

- two indicators 28 and 29 strikes.

In each channel, a receiving antenna, a filter, a mixer, an intermediate-frequency signal amplifier, a detector, a first, second, third relay and an indicator are connected in series.

The inputs of the circuit (CC) 18 are connected to the outputs of the detectors 16 and 17, and its output of the control signal is connected to the inputs of the control signals of the first pair of relays 19 and 20.

The inputs of the circuit (SNF) 23 are connected to the outputs of the second pair of relays 21 and 22, and the outputs of its control signals are cross-connected with the control inputs of the same relays.

NC contacts of the electric buttons 26 and 27 are connected to the control outputs of the third pair of relays 24 and 25, respectively.

System Description

The system operates in two modes.

The first mode of operation, when opponents hit one saber against another, their saber sensors work simultaneously, in this case the system works as follows.

After detectors 16 and 17, the edges of the pulse signals of the saber-saber strokes simultaneously arrive at the inputs of the circuit (CC) 18, it generates an output control signal that goes to the inputs of the first pair of relays 19 and 20, they are triggered, their NC contacts are opened, the signal chain is broken , and shock indicators do not turn on.

The second mode of operation. In case of simultaneous strikes by opponents against each other, coincidence circuit 18 does not work, the NC contacts of the first pair of relays 19 and 20 remain closed.

The signal from the blow struck by the opponent first passes one relay of the second pair, the output of which is connected to the input of the circuit (SNF) 23, this circuit generates a control signal and disconnects the NC contact of the other relay of the second pair, because the outputs of the circuit 23 of the control signals are connected crosswise. The front of the second signal reaches the input of the second relay of the second pair later, when its NC contact is open and the signal of the second strike will not pass through it.

The first signal passed one relay of the second pair passes to the signal input of one relay of the third pair 24 or 25 and closes the NO contact, the indicator 28 or 29 of the first strike is turned on. The block contact keeps the NO contact of the tripped relay of the third pair closed even after the passage of the shock signal.

To turn off the indicator, press the button 26 or 27, which will break the circuit of the block contact and will not keep the NO contact of the third relay 24 or 25 closed.

Features of the claims

Transmitting devices generate high-frequency signals of different frequencies, and the receiving device has two channels for converting high-frequency signals of different frequencies.

Each transmitting device additionally includes: two electrical connectors mounted on the inside of the guard saber, two sensors chopping, cutting impacts, which are connected in parallel with the sensors of stabbing and connected to the corresponding terminals of the electrical connector.

The outputs of the sensors, through an electrical connector, are connected to the power switches of the radio transmitters, the outputs of which are connected to the inputs of the transmitting antennas.

The following devices are introduced into the receiving device: a second antenna, two narrow-band filters, two mixers, a local oscillator, two amplifiers of intermediate frequency signals, two detectors, a circuit registering the coincidence of the fronts of the pulse signals of the strikes, the first and second pair of relays, each relay has an input and output of signals applied strokes, the input of the control signal and a normally closed contact, the circuit registering the front of the first pulse signal of strikes has two inputs of signals of strikes and two cross outputs of control catch, a third pair of relays each having input and output signals applied punches control input, a normally open contact and the auxiliary contact, elektroknopki with two normally closed contacts.

In each channel, an antenna, filter, mixer, intermediate-frequency signal amplifier, detector, one relay of each pair and an indicator are connected in series.

The inputs of the circuit, which registers the coincidence of the fronts of the pulse signals of strikes, are connected to the outputs of the detectors, and the output of the control signal of this circuit is connected to the inputs of the control signals of the first pair of relays.

The inputs of the circuit triggered from the front of the first impulse signal of strikes are connected to the outputs of the second relay pair, and the outputs of its control signals are cross-connected to the control inputs of the relay of the same pair, and the contacts of the electric buttons are connected to the control outputs of the third relay pair.

Claims (1)

A saber fencing wireless signal transmission system comprising: a receiving device, an antenna, two transmitting devices, each having a transmitter, an antenna and a saber with a piercing sensor, and two striking indicators, characterized in that the transmitting devices generate high-frequency signals of different frequencies, and the receiving device has two channels for converting high-frequency signals, and each transmitting device additionally includes: an electrical connector, which is fixed to the inside on the back side of the saber guard, chopping and cutting impact sensor, which is placed in the cavity of the guard at a distance 2/3 of the length of the saber from the guard, the sensor contacts are connected in parallel with the piercing sensor contacts and are connected to the input terminal of the electrical connector, in addition, the sensor outputs through electrical the connectors are connected to the power switches of the radio transmitters, the outputs of which are connected to the inputs of the transmitting antennas, and the receiving device includes: a second antenna, two narrow-band filters, two mixers, a local oscillator, two amplify I of intermediate frequency signals, two detectors, a circuit registering the coincidence of the edges of the pulse signals of strikes, the first and second pair of relays, each relay has an input and output of signals of strikes, a control signal input and a normally closed contact, a circuit registering the front of the first pulse signal of strikes strokes, which has two inputs of signals of strikes and two cross outputs of control signals, a third pair of relays, each of which has an input and output of signals of strikes, a control input signal, normally open contact and block contact, two electrical buttons with normally closed contacts, and in each channel an antenna, a filter, a mixer, an intermediate-frequency signal amplifier, a detector, one relay of each pair and an indicator are connected in series, in addition, the circuit inputs, which registers the coincidence of the fronts of the pulse signals of strikes, connected to the outputs of the detectors, and the output of the control signal of this circuit is connected to the inputs of the control signals of the first pair of relays, and the inputs of the circuit from the edge of the first pulse signal applied punches are connected to the outputs of the second pair of relays and outputs its control signal cross-coupled to the control inputs of the relay of the same pair, in addition, elektroknopok contacts connected to the control outputs of the third pair of relays.

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